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Issue 32, 2017
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A systematic study of triangular silver nanoplates: one-pot green synthesis, chemical stability, and sensing application

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Abstract

While there has been remarkable success in generating silver (Ag) nanoplates, and they have considerable potential applications, their degradation behavior in certain environments remains poorly understood. In the current work, we investigated the chemical stability of triangular Ag nanoplates. A one-step water-based synthesis method regulated by the coordination of ligands to Ag cations was successfully employed to produce triangular Ag nanoplates with a high yield. The Ag nanoplates were irreversibly degraded when they were aged with poly(styrene-4-sulfonate) (PSS) at room temperature, and the corresponding localized surface plasmon resonances (LSPR) of the Ag nanoplates changed as well. In contrast, when the Ag nanoplates were aged with potassium persulfate (KPS), the shape evolution of Ag nanoplates was found to depend on the external temperature, and the Ag nanoplate solutions showed different final colors when different external temperatures were applied. These results exhibit important implications for the behavior of triangular Ag nanoplates in a wide variety of plasmonic applications and can be applied to the colorimetric sensing of the temperature history.

Graphical abstract: A systematic study of triangular silver nanoplates: one-pot green synthesis, chemical stability, and sensing application

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Publication details

The article was received on 01 May 2017, accepted on 14 Jul 2017 and first published on 18 Jul 2017


Article type: Paper
DOI: 10.1039/C7NR03077K
Citation: Nanoscale, 2017,9, 11705-11712
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    A systematic study of triangular silver nanoplates: one-pot green synthesis, chemical stability, and sensing application

    Y. N. Wijaya, J. Kim, W. M. Choi, S. H. Park and M. H. Kim, Nanoscale, 2017, 9, 11705
    DOI: 10.1039/C7NR03077K

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